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Altera_Forum
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21 years ago

Nios2/s to Nios2/f

When I converted to NIOS2/f from NIOS2/s I saw my network performance drop by 10X. I am running uC/OS-II and LWIP on the Altera's Cyclone Development board. The code and FPGA are the sam...
Altera_Forum's avatar
Altera_Forum
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21 years ago

Thanks for your reply.

At first I had the dcache on and changed my malloc to be uncached. I saw the performance hit and thought maybe there was something else related to dcache so I turned it off.

I am looking for more performance. My application would like to send vga images over the ethernet port at as close to 30F/s as can be done.

With NIOS2/s, uC/OS-II, LWIP, a DMA, and a checksum module on a cyclone develpment board I have been able to get TCP up to 18Mbps and UDP up to 41 Mbps. I was hoping for alittle more with NIOS2/f.